An automatic anchor releasing and replacing device for shipboard use

Abstract

The application relates to a ship anchor abandoning technical field and discloses a boat-mounted automatic anchor releasing and replacing device suitable for multi-task requirements, which comprises a top base, mounting seats are fixedly connected to the lower ends of the two sides of the top base, door-shaped seats are slidably connected in the mounting seats, plug blocks are slidably connected to the inner upper portions of the door-shaped seats, gear racks one are fixedly connected to the upper ends of the plug blocks, gear wheels one are meshingly connected to the gear racks one, speed regulators are fixedly connected to the upper ends of the front and back sides of the door-shaped seats, and the middle portions of the gear wheels one are fixedly connected to the input ends of the speed regulators. After the plug blocks on the front and back sides are separated, the gear wheels one are driven to rotate through the gear racks one, the bidirectional screw rods are driven to accelerate rotation through the speed regulators, the limiting seats are driven to approach the plug blocks and contact the plug blocks, the plug blocks are stopped from moving, the plug blocks are stably clamped on the two sides of the vertical chain links, the anchor chains are limited through the horizontal chain links on the two sides, and the anchor chains are stably fixed.

Description

Technical Field

[0001] This invention relates to the field of ship anchor abandonment technology, and in particular to a shipborne automatic anchor abandonment and anchor replacement device suitable for multi-mission requirements. Background Technology

[0002] Currently, when ships need to detach their anchor chains from underwater debris, chain release devices are often used as emergency release mechanisms. The working principle is as follows: the chain release device is fixed to the end link of the anchor chain. Operators manually or hydraulically pull out the connecting pin on that end link, detaching the entire anchor chain from the hull and thus releasing the anchor.

[0003] However, a single anchor chain segment is typically about 27.5 meters long. Especially for medium to large ships, a single anchor chain segment can weigh between 3.5 and 12 tons, making the manufacturing and maintenance costs of the entire anchor chain extremely high. Therefore, in non-emergency situations where other methods cannot be used to pull the anchor from the seabed, the usual practice is to recover the anchor chain as much as possible. If recovery is not possible, the anchor chain is cut to preserve most of it. However, existing cutting methods mostly rely on manual hand-held cutting equipment. During cutting, the anchor chain is in a free-suspension state. If the ship sways, it is difficult to accurately locate the cutting point, which is not only inefficient but also poses significant operational safety hazards. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a shipborne automatic anchor detachment and anchor replacement device suitable for multi-mission requirements, so as to solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention adopts the following technical solution: a shipborne automatic anchor removal and replacement device suitable for multi-mission requirements, comprising a top base, mounting seats fixedly connected to both sides of the lower end of the top base, a portal-shaped seat slidably connected inside the mounting seats, insert blocks slidably connected to the front and rear sides of the upper inner part of the portal-shaped seat, a rack fixedly connected to the upper end of each insert block, a gear meshing with each rack, a speed regulator fixedly connected to the upper front and rear sides of the portal-shaped seat, the middle part of each gear fixedly connected to the input end of the speed regulator, a bidirectional screw fixedly connected to the output end of the speed regulator, a drive block threadedly connected to the upper and lower ends of the bidirectional screw, a connecting plate rotatably connected inside each drive block, and a limit seat slidably connected inside the front and rear sides of the portal-shaped seat, the connecting plate rotatably connected to the limit seat; The limiting seat abuts against the middle of the insert block when the insert block is inserted into the gap between two adjacent horizontal chain links, thereby preventing the insert block from shifting horizontally.

[0006] Preferably, the outer side of the first drive block is slidably connected to the inner front and rear sides of the portal seat, and the lower end of the bidirectional screw is rotatably connected to the lower front and rear sides of the portal seat.

[0007] Preferably, a sliding seat 2 is fixedly connected to both the front and rear sides of the lower end of the top seat. A driving block 3 is slidably connected inside the sliding seat 2. A sliding rod is slidably connected inside the driving block 3 on the rear side. A threaded rod 2 is threadedly connected inside the driving block 3 on the front side. A gear 2 is fixedly connected to the right end of the threaded rod 2. A gear 3 is meshed with the gear 2. A rotating shaft 1 is fixedly connected to the middle of the gear 3. A gear 4 is fixedly connected to the middle of the rotating shaft 1. A gear 5 is meshed with the gear 4. A rotating shaft 2 is fixedly connected to the middle of the gear 5. A gear 6 is fixedly connected to the right side of the rotating shaft 2.

[0008] Preferably, the two ends of the slide rod are fixedly connected to the two ends of the rear slide seat two, and the two ends of the threaded rod two are rotatably connected to the two sides of the front slide seat two.

[0009] Preferably, a rotating seat is fixedly connected to the front end of the mounting base on the right side, a rack two is slidably connected inside the rotating seat, a connecting seat one is fixedly connected to the upper end of the rack two, and the rear end of the connecting seat one is fixedly connected to the upper end of the insert block on the front right side.

[0010] Preferably, the right ends of both the first and second rotating shafts are rotatably connected to the left end of the rotating seat, and the right end of the second sliding seat on the front side is fixedly connected to the second connecting seat. The left ends of both the first and second rotating shafts are rotatably connected to the right side of the second connecting seat.

[0011] Preferably, a sliding seat 1 is slidably connected to the lower end of the sliding seat 2 on the front side, a motor 2 is fixedly connected to the front side of the sliding seat 1, a threaded rod 1 is fixedly connected to the driving end of the motor 2, a driving block 2 is threadedly connected to the external thread of the threaded rod 1, and a cutting machine is fixedly connected to the lower end of the driving block 2.

[0012] Preferably, the lower ends of the three driving blocks are fixedly connected to the upper ends of the first sliding seat, the front and rear ends of the first threaded rod are rotatably connected to the front and rear sides of the first sliding seat, and the outer side of the second driving block is slidably connected to the inside of the first sliding seat.

[0013] Preferably, a drive seat is fixedly connected to the upper part of the side of the gantry seat away from the cutting machine, a threaded rod three is threadedly connected to the middle of the drive seat, a single groove pulley is fixedly connected to the upper end of the threaded rod three, a motor one is fixedly connected to the lower front side of the top seat, a pulley two is fixedly connected to the drive end of the motor one, and the pulley two is connected to the single groove pulley through a transmission belt.

[0014] Preferably, the upper ends of the threaded rods are rotatably connected to both sides of the top seat, and the outer sides of the drive seat are slidably connected to the inside of the mounting seat.

[0015] The present invention provides a shipborne automatic anchor release and anchor replacement device suitable for multi-mission requirements, the advantages of which are: 1. When the horizontal chain link is inside the portal frame, the front and rear inserts will not separate and will directly insert into the chain link to limit its movement. When the vertical chain link is inside the portal frame, the inserts will be squeezed apart by the vertical chain link and will be stuck on both sides of the vertical chain link, located between the two horizontal chain links, achieving stepless adaptation. The inserts on both sides can straighten and correct the cut section of the anchor chain. When the left and right ends of the vertical anchor chain are located at the center of the portal frame, the inserts on both sides will be squeezed apart by the anchor chain, but will contact the inner side of the horizontal chain link, and the inserts will merge again and insert into the interior of the horizontal chain link. When the offset part of the middle of the vertical anchor chain is located at the center of the portal frame, the inserts will contact the outer side of the horizontal chain link and be separated, inserting between the two horizontal chain links, enabling precise positioning of the chain link.

[0016] 2. After the front and rear inserts are separated, the rack drives the gear to rotate, which in turn drives the bidirectional screw to rotate faster through the speed regulator. Then, through the cooperation of the drive block and the connecting plate, the limit seat is driven to approach the insert and contact the insert, blocking the insert so that it cannot move. This makes it stably locked on both sides of the vertical chain link. The horizontal chain links on both sides limit the anchor chain, which helps to stabilize and fix the anchor chain.

[0017] 3. The cutting machine can always cut horizontal chain links without the need for large-diameter saw blades for vertical chain links, making the cutting mechanism small and lightweight, adaptable to the limited space on the boat. At the same time, the insertion block ensures that the cutting machine always cuts the chain link crossbars, resulting in high cutting efficiency and stable saw blade load, significantly reducing equipment power consumption and failure risk. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 One of the front-view perspective perspectives of an assembly of a shipborne automatic anchor-removing and anchor-changing device suitable for multi-mission requirements provided in this application; Figure 2 A second front-view perspective stereoscopic diagram of the assembly of a shipborne automatic anchor-removing and anchor-changing device suitable for multi-mission requirements, provided for this application; Figure 3 A frontal perspective stereoscopic view of a shipborne automatic anchor-removing and anchor-changing device suitable for multi-mission requirements, provided for this application; Figure 4 An exploded three-dimensional view of the cutting component of a shipborne automatic anchor detachment and replacement device suitable for multi-mission requirements, provided for this application; Figure 5 A front-view perspective perspective view of a side limiting component and drive component of a shipborne automatic anchor detachment and anchor replacement device suitable for multi-mission requirements provided in this application; Figure 6 A front-view perspective perspective view of the other side limiting component and drive component of a shipborne automatic anchor detachment and anchor replacement device suitable for multi-mission requirements provided in this application; Figure 7 A frontal perspective perspective view of a single limiting component of a shipborne automatic anchor detachment and anchor replacement device suitable for multi-mission requirements, provided in this application; Figure 8 This is a three-dimensional cross-sectional view of a single limiting component for testing a shipborne automatic anchor detachment and replacement device suitable for multi-mission requirements, provided in this application.

[0020] In the diagram: 1. Top seat; 2. Mounting seat; 3. Rotary seat; 4. Portal seat; 5. Insert block; 6. Rack 1; 7. Gear 1; 8. Speed ​​regulator; 9. Double-acting screw; 10. Drive block 1; 11. Connecting plate; 12. Limit seat; 13. Connecting seat 1; 14. Rack 2; 15. Single-groove pulley; 16. Transmission belt; 17. Pulley 2; 18. Motor 1; 19. Sliding seat 1; 20. Motor 2; 21. Threaded rod 1; 22. Drive block 2; 23. Cutting machine; 24. Sliding seat 2; 25. Drive block 3; 26. Slide rod; 27. Threaded rod 2; 28. Gear 2; 29. ​​Gear 3; 30. Rotating shaft 1; 31. Gear 4; 32. Gear 5; 33. Rotating shaft 2; 34. Gear 6; 35. Drive seat; 36. Threaded rod 3; 37. Connecting seat 2. Detailed Implementation

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0022] like Figures 1-8As shown, this embodiment proposes a shipborne automatic anchor removal and replacement device suitable for multi-mission requirements, including a top seat 1. Mounting seats 2 are fixedly connected to both sides of the lower end of the top seat 1. A portal-shaped seat 4 is slidably connected inside the mounting seats 2. Insert blocks 5 are slidably connected to the front and rear sides of the upper inner part of the portal-shaped seat 4. A rack 6 is fixedly connected to the upper end of each insert block 5. A gear 7 is meshed with each rack 6. A speed regulator 8 is fixedly connected to the upper front and rear sides of the portal-shaped seat 4. The middle part of each gear 7 is fixedly connected to the input end of the speed regulator 8. A bidirectional screw 9 is fixedly connected to the output end of the speed regulator 8. A drive block 10 is threadedly connected to the upper and lower ends of the bidirectional screw 9. A connecting plate 11 is rotatably connected inside the drive block 10. A limit seat 12 is slidably connected inside the front and rear sides of the portal-shaped seat 4. The connecting plate 11 is rotatably connected to the limit seat 12. When the insert block 5 is inserted into the gap between two adjacent horizontal chain links, the limiting seat 12 abuts against the middle of the insert block 5 to limit its horizontal displacement.

[0023] In this embodiment, a drive seat 35 is fixedly connected to the upper part of the side of the gate-shaped seat 4 away from the cutting machine 23. A threaded rod 36 is threadedly connected to the middle of the drive seat 35. A single groove pulley 15 is fixedly connected to the upper end of the threaded rod 36. A motor 18 is fixedly connected to the front side of the lower end of the top seat 1. A pulley 2 17 is fixedly connected to the drive end of the motor 18. The pulley 2 17 is connected to the single groove pulley 15 through a transmission belt 16.

[0024] In this embodiment, the upper ends of the threaded rods 36 are rotatably connected to both sides of the top seat 1, and the outer sides of the drive seat 35 are slidably connected to the inside of the mounting seat 2.

[0025] It should be noted that during routine maintenance, the two insert blocks 5 need to be adjusted to the center of the portal frame 4 and fixed with steel wire ropes to ensure that they are not affected by the ship's navigation when they are in the center of the portal frame 4. The steel wire ropes should be able to break when the insert blocks 5 contact the vertical anchor chain, ensuring that the insert blocks 5 can be smoothly inserted into the gap between the two horizontal chain links to limit the anchor chain. In small and medium-sized ships, this device is generally installed horizontally, usually on the deck or at the front of the chain receiver inside the chain receiver compartment. However, in medium and large ships, since a single chain link weighs 70-150 kg, horizontal installation poses a risk when abandoning the chain. This device is installed in the middle of the anchor chain slide on the ship and needs to be installed coaxially with the anchor chain slide. That is, the two portal frames 4 anchor chain slides are assembled vertically. After the portal frame 4 is attached to the inner bottom wall of the mounting base 2, the center of the portal frame 4 is coaxial with the axis of the anchor chain slide, ensuring the safety of abandoning the chain.

[0026] Specifically, when an anchor is stuck on the seabed and can only be freed by releasing the anchor, the vessel can first be moved directly above the anchor, and the chain retractor activated to retrieve the anchor chain. If the anchor chain cannot be retrieved, the motor 18 is activated, which drives the single-groove pulley 15 to rotate via the pulley 17 and the drive belt 16. This, in turn, drives the two portal seats 4 to slide downwards inside the mounting seat 2 via the threaded rod 36 and the drive seat 35. When the horizontal chain link is inside the portal seat 4, the front and rear inserts 5 do not separate and are directly inserted into the chain link to limit its movement. When the vertical chain link is inside the portal seat 4, the inserts 5 are squeezed apart by the vertical chain link and are stuck on both sides of the vertical chain link, located between the two horizontal chain links, achieving stepless adaptation. Furthermore, the inserts 5 on both sides can straighten and correct the cut section of the anchor chain. When the left and right ends of the chain are located at the center of the portal seat 4, the two side inserts 5 will be squeezed apart by the anchor chain, but will contact the inner side of the horizontal chain link. The inserts 5 will then merge again and be inserted into the interior of the horizontal chain link. When the offset part of the vertical anchor chain is located at the center of the portal seat 4, the inserts 5 will contact the outer side of the horizontal chain link and be separated, and inserted between the two horizontal chain links, which can accurately position the chain link. After the front and rear inserts 5 are separated, the rack 6 drives the gear 7 to rotate, which in turn drives the bidirectional screw 9 to rotate faster through the speed regulator 8. Then, through the cooperation of the drive block 10 and the connecting plate 11, the limiting seat 12 is driven to approach the insert 5 and contact the insert 5, pressing against the insert 5 so that the insert 5 cannot move, thus stably locking it on both sides of the vertical chain link. The anchor chain is limited by the horizontal chain links on both sides, which is beneficial for the stable fixing of the anchor chain.

[0027] In this embodiment, the external parts of the drive block 10 are slidably connected to the interior of the front and rear sides of the portal seat 4, and the lower ends of the bidirectional screws 9 are rotatably connected to the lower ends of the front and rear sides of the portal seat 4.

[0028] In this embodiment, sliding seats 24 are fixedly connected to the front and rear sides of the lower end of the top seat 1. Driving blocks 3 25 are slidably connected inside the sliding seats 24. A sliding rod 26 is slidably connected inside the rear driving block 3 25. A threaded rod 27 is threadedly connected inside the front driving block 3 25. A gear 28 is fixedly connected to the right end of the threaded rod 27. A gear 39 is meshed with the gear 28. A rotating shaft 30 is fixedly connected to the middle of the gear 3 29. A gear 4 31 is fixedly connected to the middle of the rotating shaft 30. A gear 5 32 is meshed with the gear 5 32. A rotating shaft 2 33 is fixedly connected to the middle of the gear 5 32. A gear 6 34 is fixedly connected to the right side of the rotating shaft 2 33.

[0029] In this embodiment, the two ends of the slide rod 26 are fixedly connected to the two ends of the rear sliding seat 24, and the two ends of the threaded rod 27 are rotatably connected to the two sides of the front sliding seat 24.

[0030] Specifically, the motor 20 and the cutter 23 are started, and the drive block 22 is moved forward by the threaded rod 21. The cutter 23 cuts the center part of the chain link, making the cutting smoother. It is not necessary to discard the entire anchor chain. Only a part of the anchor chain is cut off, which greatly reduces the cost of anchor chain loss.

[0031] In this embodiment, a rotating seat 3 is fixedly connected to the front end of the right mounting base 2, a rack 2 14 is slidably connected inside the rotating seat 3, a connecting seat 13 is fixedly connected to the upper end of the rack 2 14, and the rear end of the connecting seat 13 is fixedly connected to the upper end of the right front insert block 5.

[0032] In this embodiment, the right ends of rotating shaft 1 30 and rotating shaft 2 33 are rotatably connected to the left end of rotating seat 3, and the right end of front sliding seat 2 24 is fixedly connected to connecting seat 2 37. The left ends of rotating shaft 1 30 and rotating shaft 2 33 are rotatably connected to the right side of connecting seat 2 37.

[0033] In this embodiment, a sliding seat 19 is slidably connected to the lower end of the front sliding seat 24, a motor 20 is fixedly connected to the front side of the sliding seat 19, a threaded rod 21 is fixedly connected to the drive end of the motor 20, a drive block 22 is threadedly connected to the external thread of the threaded rod 21, and a cutting machine 23 is fixedly connected to the lower end of the drive block 22.

[0034] In this embodiment, the lower end of the drive block 3 25 is fixedly connected to the upper end of the sliding seat 19, the front and rear ends of the threaded rod 21 are rotatably connected to the front and rear sides of the sliding seat 19, and the external of the drive block 22 is slidably connected to the inside of the sliding seat 19.

[0035] Specifically, when the inner chain link of the right portal seat 4 is vertical, causing the front and rear insert blocks 5 on the right side to separate, the connecting seat 13 drives the rack 2 14 to mesh with the gear 6 34. At this time, the insert block 5 continues to descend and is locked between the chain links on both sides. The gear 6 34 drives the gear 4 31 to rotate through the rotating shaft 2 33 and the gear 5 32, which in turn drives the gear 3 29 to rotate through the rotating shaft 1 30, which in turn drives the threaded rod 2 27 to rotate through the gear 2 28, and then drives the front drive block 3 25 to move to the right inside the front sliding seat 2 24. The sliding mechanism, in conjunction with the drive block 25 and slide rod 26 within the rear sliding seat 24, moves the sliding seat 19 to the right by the distance of one chain link. This allows the cutter 23 to always cut the horizontal chain links without requiring large-diameter saw blades for the vertical chain links, enabling the cutting mechanism to be compact and lightweight, adapting to the limited space on the boat. At the same time, the insertion block 5 ensures that the cutter 23 always aligns with the center of the chain link crossbar for cutting, resulting in high cutting efficiency and stable saw blade load, significantly reducing equipment power consumption and failure risk.

[0036] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A shipborne automatic anchor release and anchor changing device suitable for multi-mission requirements, comprising a top mount (1), characterized in that, The lower ends of the top seat (1) are fixedly connected to the mounting seats (2) on both sides. The mounting seats (2) are slidably connected to the portal seats (4). The upper inner front and rear sides of the portal seats (4) are slidably connected to the inserts (5). The upper ends of the inserts (5) are fixedly connected to the racks (6). The racks (6) are meshed with the gears (7). The upper front and rear sides of the portal seats (4) are fixedly connected to the speed regulators (8). The middle of the gears (7) is fixedly connected to the input end of the speed regulators (8). The output end of the speed regulators (8) is fixedly connected to the bidirectional screws (9). The upper and lower ends of the bidirectional screws (9) are threadedly connected to the drive blocks (10). The drive blocks (10) are rotatably connected to the connecting plates (11). The front and rear sides of the portal seats (4) are slidably connected to the limit seats (12). The connecting plates (11) are rotatably connected to the limit seats (12). When the insert (5) is inserted into the gap between two adjacent horizontal chain links, the limiting seat (12) abuts against the middle of the insert (5) to limit the horizontal displacement of the insert (5).

2. The shipborne automatic anchor release and anchor changing device suitable for multi-mission requirements according to claim 1, characterized in that, The exterior of the drive block (10) is slidably connected to the interior of the front and rear sides of the portal seat (4), and the lower ends of the bidirectional screws (9) are rotatably connected to the lower ends of the front and rear sides of the portal seat (4).

3. A shipborne automatic anchor release and anchor changing device suitable for multi-mission requirements as described in claim 1, characterized in that, The lower end of the top seat (1) is fixedly connected to the front and rear sides of the sliding seat (24). The interior of the sliding seat (24) is slidably connected to the drive block (25). The interior of the drive block (25) on the rear side is slidably connected to the slide rod (26). The interior of the drive block (25) on the front side is threadedly connected to the threaded rod (27). The right end of the threaded rod (27) is fixedly connected to the gear (28). The gear (28) is meshed with the gear (39). The middle part of the gear (39) is fixedly connected to the rotating shaft (30). The middle part of the rotating shaft (30) is fixedly connected to the gear (4) (31). The gear (4) (31) is meshed with the gear (5) (32). The middle part of the gear (5) (32) is fixedly connected to the rotating shaft (23). The right side of the rotating shaft (23) is fixedly connected to the gear (6) (34).

4. A shipborne automatic anchor release and anchor changing device suitable for multi-mission requirements as described in claim 3, characterized in that, The two ends of the slide rod (26) are fixedly connected to the two ends of the rear slide seat (24), and the two ends of the threaded rod (27) are rotatably connected to the two sides of the front slide seat (24).

5. A shipborne automatic anchor release and anchor changing device suitable for multi-mission requirements as described in claim 3, characterized in that, The front end of the mounting base (2) on the right side is fixedly connected to a rotating base (3), and a rack two (14) is slidably connected inside the rotating base (3). The upper end of the rack two (14) is fixedly connected to a connecting base one (13), and the rear end of the connecting base one (13) is fixedly connected to the upper end of the insert block (5) on the front right side.

6. A shipborne automatic anchor release and anchor changing device suitable for multi-mission requirements according to claim 5, characterized in that, The right ends of the first rotating shaft (30) and the second rotating shaft (33) are rotatably connected to the left end of the rotating seat (3). The right end of the second sliding seat (24) on the front side is fixedly connected to the second connecting seat (37). The left ends of the first rotating shaft (30) and the second rotating shaft (33) are rotatably connected to the right side of the second connecting seat (37).

7. A shipborne automatic anchor release and anchor changing device suitable for multi-mission requirements according to claim 3, characterized in that, The lower end of the sliding seat 2 (24) on the front side is slidably connected to the sliding seat 1 (19), the front side of the sliding seat 1 (19) is fixedly connected to the motor 2 (20), the drive end of the motor 2 (20) is fixedly connected to the threaded rod 1 (21), the external thread of the threaded rod 1 (21) is connected to the drive block 2 (22), and the lower end of the drive block 2 (22) is fixedly connected to the cutting machine (23).

8. A shipborne automatic anchor release and anchor changing device suitable for multi-mission requirements according to claim 7, characterized in that, The lower ends of the three driving blocks (25) are fixedly connected to the upper end of the sliding seat (19). The front and rear ends of the threaded rod (21) are rotatably connected to the front and rear sides of the sliding seat (19). The external part of the two driving blocks (22) is slidably connected to the inside of the sliding seat (19).

9. A shipborne automatic anchor release and anchor changing device suitable for multi-mission requirements according to claim 7, characterized in that, The upper part of the side of the gate-type seat (4) away from the cutting machine (23) is fixedly connected to a drive seat (35). The middle part of the drive seat (35) is threadedly connected to a threaded rod three (36). The upper end of the threaded rod three (36) is fixedly connected to a single groove pulley (15). The front side of the lower end of the top seat (1) is fixedly connected to a motor one (18). The drive end of the motor one (18) is fixedly connected to a pulley two (17). The pulley two (17) is connected to the single groove pulley (15) through a transmission belt (16).

10. A shipborne automatic anchor-disengagement and anchor-changing device suitable for multi-mission requirements according to claim 9, characterized in that, The upper ends of the threaded rods (36) are rotatably connected to both sides of the top seat (1), and the exterior of the drive seat (35) is slidably connected to the interior of the mounting seat (2).

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